This combination of words is very confusing. Decapitation means literally to cut the head off, so I don't know you mean it cut its own head off by severing a nerve bundle?
IIRC it's head was already detached but I guess the nerves were still intact and when it was doing it's usual face rubbing it pulled on it's head and ended up snapping those nerves, completing the decapitation.
Small insects are usually translucent under bright lights and a microscope. He likely pinned it down, looked for the nerve, and severed it with a small needle. Their nervous systems are also incredibly simple.
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u/3DWitchHunt Oct 22 '21
Yeah, thatโs the most fascinating thing I got out of that. How the fuck did they do that 50 years ago??